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Unit 10 Lesson 2
Term | Definition |
---|---|
Atmosphere | A mixture of gases that surrounds a planet,moon, or other celestial body. |
Air pressure | The measure of the force with which air molecules push on a surface |
Thermosphere | The uppermost layer of the atmosphere, in which temperature increases as altitude increases |
Mesosphere | The strong, lower part of the mantle between the asthenosphere and the outer core |
Stratosphere | The layer of the atmosphere that lies between the troposphere and the mesosphere and in which temperature increases as altitude increases; contains the ozone layer |
Troposphere | The lowest part of the atmosphere, in which temperature drops at a constant rate as altitude increases;the part of the atmosphere where weather conditions exist |
Ozone layer | The layer of the atmosphere at an altitude of 15 to 40 km in which ozone absorbs ultraviolet solar radiation |
Greenhouse effect | The warming of the surface and lower atmosphere of Earth that occurs when water vapor, carbon dioxide, and other gases absorb and reradiate thermal energy |